Engine-control device



M. c. COPES ENGINE CONTROL DEVIC Filed Jan. 39, I922 Patented a- 21, 1924.

PATEN OFFICE.

mason c. corns, or LOS mourns, cnmroama. I

auemrrcournoninnvrcn.

I Application filed. January 30, 1922. Serial No. 532,750.

To'all'wizmnitmay comm;

Be it known that I, MAsoN C Corns, a citizen of the United States, residing at .Los Angeles, in the county of Los Angeles and State of California, have invented a new. and useful Engine-Control Device, of which the following is a specification;

This invention relates to an engine con-- trol device and is particularly directedto a devicehaving a-cooperative function with v a forced feed lubricatingsystem. v

An object of the inventionis to provide'a' device by which the supply of motive j fluid or mixture to the engine ,is'regulated ac- 5 cording to the pressure in the lubricating system. i Another object is to prov de a device for controlling the supply of mlxture from the carbureter to the intake manifold of an internal combustion engine having a-forced feed lubricating system, whereby said supply is automatically cutofi when the pres-v sure in the lubricating system falls below a int. of safet i A further ob ect is to provide a manually operative means for operating thedevice independently of the pressure conditions in 'the lubricating systemso as to permit a starting of the engine.

Various other objects and advantages will bei'more fully apparent from the following description'of the accompany ng drawings, which form a part of this disclosure, and which illustrate a preferred embodiment of I the invention.

Of the drawings: i

Fig. 1 is anelevation of a conventional type of internal combustion engine with my improved control device applied thereto;

Fig. 2 is an enlarged elevation, partly in section, of the control device, and Fi 3 is a section on-hne 3-:3, of F1g. 2. In the embodiment of the invention 11- i lustrated in the drawin there is provided a conduit 1 interpose between the carburetor 2 and the intake manifold 3 and provided with flanges 4 for attachment toges of said carburetor. and manifold.

A horizontal shaft 5 journaled in the walls of said conduit carriesa valve disc 6- which controls the passage of mixture. from the carburetor tolthe intake manifold. The shaft 5 extends through the wall of the as conduit 1 and has secured thereto anjop-' erating lever 7 having a pin and slot conrod is moved down or up the valve 6 will be closed'or opened as the case may be.

The piston rod 8 extends through a bushing 9 and connects with apiston 10 having a-sliding fit in a cylinder 11. The lower portion of the cylinder communicates by a pipe 12 with the forced feed lubricating system which includes'a suitable oil pump 13 supplying lubricant under pressure to the various bearings of the engine in the usual well known manner. r.

The lower portion ofthe cylinder 11 is enlarged and has-an inclined wall portion 14 providing an annular seat and the lower Y portion of. the piston 10 is similarly enlarged and provided With'an inclined or 0011103.]; portion 15 constituting a valve for cooperation with the seat 14 when the'piston'is in elevated position so as to form a positive seal preventing the oil from escaping upwardly past the. piston. A spring 16 interposed between the piston and the bushing 9-- functions to return the piston to its depressed position when the pressure in the lubricating system falls below a point of safety, the tension of'the springbeing regulated by screwing the bushing upwardly or downwardly in the cylinder. The cylinder is supported by a bracket '17 extending from the conduit 1 and is retained clamped upon said bracket by a strap member'18,.t he strap member also clam in the end of a tube 19 leading to the as]? board 20. A flexible wire 21 extends a slot 22 in the end of the lever 7 and has secured to itsfree end an abutment stop 23, .the dash board end of the wire being provided with a handle or button 24 by which the wiremay be pulled.

' through. said tube and upwardly through With the engine running and the forced feed lubricating system in operation, the device will be maintained in the condition illustrated, the pressure maintained in the lubricating system beingexerted upon the in elevated position and the valve 6 in open position permitting a full supply of mixture 1 o flow from the carbureter. into the intake manifold; v

If by a clogging of the lubricating system or if for. any other reason, the pressure therein'is notmaintained, spring lfiwill cause a lowering of the piston and a closing of the valve 6 to prevent. a continuedoperlower-end of the piston 10, maintaining it 55 v and a =carbureter, aforced feed lubricating a burning out of the 1y opening the ation of the engine such as would cause bearings.

Thus I have provided a control, device by which the supply of mixture to the engine is regulated with respect to the pressure maintained in the lubrlcai ting system.

As it is evident that with the engine at rest, there will be no pressure in the lubricating system until the engine is first started, means must be provided for independentvalve 6 so as to permit an initial starting of the engine. Such means includes the flexible wire 21 which is manually pulled outwardly at the dashboard when desired to start the engine. By so pulling upon the wire 21, the abutment stop 23 engages the top surface of the lever 7 and moves the parts to the position shown in Fig. 2 causing an opening of the valve 6 regardless of the pressure conditions in the lubricating system. As soon as the engine is running properly the wire 21 1s released and the device then assumes its automatic control under the influence of the pressure within the' lubricating systeiin Having described my invention ll cla1m:

1. In combination wlth an engine having an inlet conduit for the explosive mixture and a forced feed lubricating system, a valve controllin the flow of explosive mixture through t e inlet conduit, a valve actuator movable with'the valve in response to variations in the pressure in the lubricating system, and independent means h'avrngan operating handle at the dash Jfor opening the walveregatrdless of pressure conditions in the lubricating system. I

23'111 combination with an engine'havin 3 an inlet conduit for explosive mixture and a forced feed lubricating system, a valve controlling'the flow of explosive. mixture through the inlet conduit, a valve actuator having a direct connection with said valve and movable in one direction in response to pressure in the lubricating system to open the valve, means for moving'the actuator and valve in a reverse direction and tune tioning with a decrease in said pressure to close'the valve, and independent means having an operating handle at the dash for moving the valve to open position regarda less of pressure conditions in the lubricating system.

bustion engine having an intake manifold system,'a valve controlling the flow of ex? plosive. mixture from the carbureter to the' manifold, a cylinder communicating wit the lubricating. system, af piston within th cylinder connected to operate the valve and .maintained in position tohold the valve] open by pressure within the lubricating system, means for movin the piston into a position to close the va ve upon a decrease rename insaid pressure, ating handle at the valve to open position regardless of pressure conditions in the lubricating system.

4. lln combination with an internal combgstion engine having an intake manifold a d a carbureter, a forced feed lubricating system, a throttle valve having a valve disc rotatably mounted therein for controlling the flow of the explosive mixture from the carbureter to the manifold, alever rigidlyconnected with the valve disc for rotating and means having an oper ash for moving the the same, a cylinder communicating with the system, athrottle valve having a; rotatably mounted valve disc for controlling the flow ofthe explosive mixture from the carbureter to the manifold a lever rigidly connected with the valve isc for operating the same, a cylinder communicating with the lubricatin system, a piston mounted within the cylin er, saidpiston having a substantially conical portion, and said cylinder having a seat for the .conical portion of the piston whereby the piston operates as a valve to prevent the oil under pressure from passing the valve, means connecting this piston with saidlever to enable the pressure in the lubricating system to control the valve, a spring within the cylinder for closing, the throttle '6. ln combination with an internal combust1on engine having an intake manifold and a carbureter, a forced feed lubricating combination with an vinternal com- 4 system,-a 'throttle valve having a rotatable valve disc .mounted therein for controllingthe, flow of the explosive ({nixtu're from the carbureter to the manifol a cylinder com- 'cating with the lubricating wstem enlarged diameter, with a coniat v onnecting the same, a piston mount to sllde within the cylinder, having a conical face to come upon the seat and preyent flow of. the oil past the piston when on its seat, a piston rod extendingfrcm the.

g a portion of reduced diameter and a 1 .tlono throttle valve at w1ll independently of the piston. and connected with the said lever whereby the pressure of the oil in the lubridating system normally holds the'valve disc so that the throttle valve is wide open, a spring exerting its force in a direction to close the throttle valve when the pressure. in the lubricating s stem falls, and means operable from the rivers position for engaging the lever to open the valve at will independently of the pressure existin in the lubricating system, and constructe to permit free movement of the said lever by the piston.

7. In combination with an internal combustion engine having an'intake manifold and a carbureter, a forced feed lubricating system, a throttle valve controlling the flow of the explosive mixture and having a valve disc rotatably mounted therein, a cylinder having a portion of reduced diameter and a.

portion of enlarged'diameter, with a seat portion connectingtlie same, the enlarged portion of said cylinder-being in communication with the lubricating system, a piston movable in the cylinder and having an enlarged portion to cooperate with the seat portion to prevent escape of oil past the piston when on its seat, a bushing at the end 01" the reduced portion of the cylinder, a pistonrod connected with the piston and'mounted to slide through the bushing, a lever rigid with the valve disc and connected with'the piston-rod, whereby the pressure in the lubricating system normally holds the throttlevalve wide open, a spring within the reduced portion of the cylinder between the piston and the said bushing, exerting its force in a direction to close the throttle valve and a pull-wire operablefrom the drivers position and having a connection to the said lever, enablin thesame to operate the throttle valvemdependently of the pressure in the lubricating system, and permitting free movement of the lever by the piston.

Signed at Los Angeles, California, this 23d day of January 1922.

MASON 0. cores. Witnesses: s

CLARENCE B. FOSTER, L. Bm mjwmvnn, 

